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Month 6 of 12

6 Months Old

Half a year in, and many babies are sitting with little help, starting solids, and babbling in longer chains — a genuine turning point month.

Last reviewed: August 8, 2026

Six months is one of the more widely recognized turning points in the first year: it's a common starting point for solid foods, a common point for independent-ish sitting, and a common point where babbling starts sounding like syllables strung together rather than isolated sounds. None of these three things has to arrive exactly at six months to be normal — they cluster around this age more than they lock to it.

Motor & Physical

  • Sits with minimal or no support for short periods
  • Rocks on hands and knees; some begin scooting or crawling
  • Passes a toy from one hand to the other
  • Bounces when held standing, bearing significant weight on legs

Cognitive

  • Puts objects in their mouth to explore them
  • Bangs objects together
  • Looks for a dropped object, showing early object permanence

Language & Communication

  • Responds to their own name
  • Babbles chains of sounds ('bababa', 'mamama')
  • Uses different vocal sounds to express pleasure and displeasure

Social & Emotional

  • Knows familiar people well
  • Enjoys social games like peekaboo
  • May show clear wariness or upset around unfamiliar people

Feeding & sleep at this age

A common point to introduce solid foods alongside breast milk or formula, usually starting with single-ingredient purées or soft finger foods, and watching for allergic reactions when introducing common allergens one at a time. Total sleep runs around 12–15 hours, typically split across 1–2 naps plus overnight, often still with a waking or two — a full night of unbroken sleep isn't a required milestone at this age even though it's a common goal.

When to check in with your pediatrician

Doesn't try to reach things that are within reach, shows no affection toward caregivers, doesn't respond to sounds nearby, can't sit even with help, doesn't bear any weight on their legs, or doesn't babble at all.

This is general information, not medical advice — if anything about your baby's development concerns you, talk to your pediatrician.

Born early? Milestones like these are usually tracked by corrected agerather than chronological age. Add a due date in the calculator below to see your baby's corrected age automatically.

Questions about 6 months old

What if my baby isn't ready for solids at exactly 6 months?

6 months is a commonly used starting point, not a strict deadline. Readiness signs (sitting with support, good head control, interest in food, losing the tongue-thrust reflex) matter more than the calendar date — talk to your pediatrician if you're unsure, especially if your baby was born early.

Is it normal to have zero teeth at 6 months?

Very normal. Tooth eruption timing varies hugely — some babies get their first tooth around 4 months, others not until well past their first birthday, and the order teeth arrive in also varies. Neither an early nor a late first tooth is, by itself, a developmental concern.

Which foods should I introduce first, and how do I handle allergens?

There's no single required order for first foods, though single-ingredient purées, mashed vegetables and fruits, and iron-fortified cereals are common starting points. Current guidance generally supports introducing common allergens (like peanut, egg, and dairy) early rather than delaying them, introduced one at a time — but talk to your pediatrician about your baby's specific situation first.

My 6-month-old babbles a lot but it doesn't sound like real syllables yet — is that a concern?

Not on its own. Babbling that sounds like actual syllable chains ('bababa') often develops gradually through this month and the next, and plenty of babies are still working up to it at 6 months. Consistent responsiveness to sound and voice is a more meaningful thing to track than the exact babbling style.

Written and maintained by Manoj Rana, based on CDC, WHO, and AAP developmental guidance — not medically reviewed.

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